Turret-lathe



(No Model.) 5 Sheets-Sheet 1.

F. H. RICHARDS. TURRET LATHE.

No. 513,653. Patented Jan. 30, 1894.

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(No Model.) 5 Sheets'-Sheet 2.

T. H. RICHARDS. TURREI' LATHE,

No. 513,653. Patented Jan. 30, 1894.

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P. H. RICHARDS.

TURRET LATHE. v NO. 513,653. Patented Jan. 30, 1894.

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(No Model.) F. RIO EAR 5 Sheets-Sheet 4.

TU-RRET LATHE.

No. 513,653. Patented Jan. 30, 1894.

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NOQ 513,653.

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TURRET LATHE.

F. H. RICHARDS.

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Pa-126111366. Jan. 30, 1 894.

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' MEI min y ggjilit FRANCIS H. RICHARDS, OF HARTFORD, CONNECTICUT, ASSIGNOR TO WALTER WOOD, OF PHILADELPHIA, PENNSYLVANIA.

TU RRET-LATH E.

SPECIFICATION forming part of Letters Patent No. 513,653, dated January 30, 1894. Application filed November 3, 1893. Serial No. 489,933. (No model.)

To all whom it Tit/fly concern:

Be it known that I, FRANCIS H. RICHARDS, a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Turret-Lathes, of which the following is a specification.

This invention relates to turret-lathes; the object being to furnish a turret-lathe having a turret adapted to carry a series of tools, and also to serve as a traverse-carriage; also having other novel features and improvements, as hereinafter. more fully set forth.

In the drawings accompanying and forming a part of this specification, Figure 1 is a plan view of a turret-lathe constructed according to my present invention. Fig. 2 is a front elevation of the lathe. Fig. 3 is an end elevation of the lathe, as seen from the left-hand in Figs. 1 and 2. Fig. 4 is an end elevation of the lathe, as seen from the right-hand in Figs. 1 and 2. Fig. 5 is an enlarged fractional View, from the right-hand in Fig. 4, for illustrating the arrangement of the feed-gearing. Fig. 6 is an enlarged plan View, similar to a portion of Fig. 1, of the turret and its slide. Fig. 7 is a sectional front elevation of the parts shown in Fig. 6, the section being takenon the line b-b, Fig. 4. Fig. 8 is a cross-sectional view of the machine, taken on about the line aa, Fig. 2, showing the parts at the left-hand of said line 'as' seen from a point at the right-hand thereof. Fig 9 is an enlarged view, similar to a portion of Fig. 1, showing the lathe furnished with certain appliances operating in combination therewith. Fig. 10 is a view similar to Fig. 9, showing the lathe equipped and adjusted for performing a different kind of work. 7

Similar characters'designate like parts in all the figures.

The framework of the/lathe, usually .denominated the bed, and herein designated in a general way by B, may be of any construction suitable for carrying the spindle, the turret-slide and the feed-mechanism.

In the drawings, the bed B is shown furnished with the front bearing, 2, and the rear bearing, 3, for the spindle, C. Said spindle is provided with the usual cone-pulley, 4, for driving the same, and on its rearward end has a feed-pulley, 5, connected by the feed-belt, 6, with the driven feed-pulley, 7, on a feedshaft, 8, which is supported in suitable bearings, 9 and 10, formed on the framework B. At its front and rearward sides, the bed 13 is provided with the forward and rearward ways, 11 and 12, respectively, upon which the turret-slide, D, is closely fitted so as to move freely thereon; the preferred manner of fitting the slide to the bed is shown best in Figs. 1 and 8, the ordinary longitudinal Wedges, 13 and 14, being provided for taking up the wear.

Asa means for operating the turret-slide, this is provided with the actuatingrshaft, 15, usually designated the pilot-wheel shaft, the forward end of which is carried in the sleeve, 16, that is fixed to the turret-slide for properly supporting the pilot-wheel, P, which consists of the usual central hub, 17, and a series of arms, 18.. Said pilot-wheel shaft 15 has thereon a driving-pinion, 19, which meshes with a gear, 20, that is on the forward end of an inclined shaft, 21, whose lower and rearward end'carri'es a worm, 22, that engages with the fixed feed-rack, 23; said rack is carried by the frame'work,'while the inclined shaft 2l is carried in a bearing, 2 1, that is fixed to or formed on the turretslide. By means of this feed mechanism, the operator, by taking hold of the levers 18, may turn the shaft 15, and, through the gears 19 and 20 and said inclined shaft, actuate the worm 22 in the rack 23 to move the turret-slide on the ways of the bed,

either forwardly or rearwardly as the case may require.

For the purpose of actuating the feed-shaft by power, this is furnished at its rearward end with the driving-gear, 25, which is loosely mounted on said shaft and is provided on the rearward face thereof with clutch teeth at 26, Figs. 4 and 8. A clutch-ring, 27, is also mounted on the rearward end of said pilot-wheel shaft, being keyed thereto so as to always revolve therewith. This ring is furnished with teeth suitable for engaging said looselymounted gear 25, and is connected, by means of a nut, 28, with the rearward end of the clutch-rod, 29, whose forward end connects with the hand-wheel, 32, whereby the same is slid forwardly or backwardly in the bore of the pilot-wheel shaft. Said loosely-mounted gear 25 meshes with an intermediate gear, 33, that is carried on a stud, 34, fixed in a plate, or apron, carried in the position approximately indicated by the dotted line at d, Fig. 5. Said plate is also provided with a stud, 35, which carries a driving-gear, 36, which meshes with said intermediate gear and has connected therewith a worm-wheel, 37, that meshes with a worm, 38, carried upon the splined feedshaft 8, between bearings, 39 and 40 (Fig. 5), formed on said plate or apron, 41. By suitably proportioning the several gears here described and the pitch of the worms and wormwheels, any required rate of feed, within ordinary limits, may be obtained. The upper end of the apron, 41, is shown constructed to form a case for covering the clutch-device.

The turret-slide D has formed thereon the tubular divided turret-carrying column, C, or turret-bearing upon which the turret, designated in a general way by T, is supported and looked, after the manner and by means of the device described in the Letters Patent No. 480,964, granted to me August 16, 1892, for an improvement in turret-mechanism. As shown in said patent, and as partially illustrated in Fig. 6, the lock-bolt, G, consisting of the two parts, 30 and 31, is carried within the turretcolumn or bearing 0 and is actuated by means of a crank-shaft, F, that is carried in the cap or top-plate, 42, on said column or bearing and is operated by means of a lever, H, fixed 011 the upper end of said crank-shaft. For a more complete description of said turret-locking mechanism and the manner of using the same, reference is made to my aforesaid prior Letters Patent.

According to my present invention, the axis 9 of lathe-spindle, when seen in plan view as shown in Fig. 1, is set to one side of the axis of the turret, so that the-turret may have formed therein a bore or opening, 43, through which may pass a rod or spindle, as 44, Fig. 9, carried by a chuck, K, on the main spindle of the lathe. The purpose of this feature of the lathe is illustrated in Figs. 9 and 10. In Fig. 9, the spindle or rod, 44, being operated upon is shown carried at one end by said chuck K and supported by a bushing, 46, in the forward end of the turret-bore or socket, 43. The cutting-off tool,47, is shown held by means of a set-screw, 48, in a traverse-carriage or slide, 49, that is fitted upon the way or track, 50, of the turret and is operated by meansof atraverse-screw,51, that is journaled in the outer end of an arm, 52, that is fixed by means of its stem, 53, in another bore, 43, of the turret. In practice, the turret being of a square form as shown in the drawings, if it is provided on its several sides with correspondin g tangential slide-ways, as 50 and 50, a series of sliding tools may be mounted upon the turret and successively brought into position for use.

It will be obvious that the turret may be of other shapes, in contour, than that shown in the drawings, as, for instance, it might be hexagonal and be provided with six, rather than four, slide-ways, and an equal number of sockets or bores. Therefore it is not desired to limit the invention to the particular turret shown in the drawings. In any case, however, the slide-ways and sockets will be tangentially disposed.

By the term tangential as herein applied to the slide-ways and sockets or bores of the turret in the construction shown in the drawings is meant that said ways and bores are tangentially disposed with relation to acircle drawn concentric to the axis of the turret.

In Fig. 10, the piece of work, J, consisting of the disk 54 and hub 55, is shown held in an ordinary geared chuck, K, while the traverse-slide, 49', upon the turret is provided with a tool, 47 for facing said disk. In this case, as in Fig. 9, said traverse-slide is shown mounted upon one of the ways of the turret, and is operated by means of a screw, 51, that is mounted in an arm, 52, fixed to the turret. Said arm, however, is, in this case, clamped upon the slide-way 50' upon the front side of the turret, by means of an ordinary clamp-bolt, 56. By means of this construction and arrangement of the several parts, the bearing-arm 52' may be slid upon the turret to bring the traverse-screw at any required distance,within ordinary limits, from the way, 50, of the traverse-slide, so as to provide for the use of different traverse-slides upon the same turret. Another side of the turret, 50",in Fig. 10 is shown furnished with a drill, 57, for boring the aforesaid hub 55, while one of the other slides of the turret is shown furnished with a facing-tool, 58, suitable for facing the end of said hub. By comparison of Figs. 9 and 10, it will be observed that the same turret-bore 43, which in Fig. 9 serves for the passage of the rod 44 through the turret, may serve, as shown in Fig. 10, for carrying shank-tools for operating upon the work.

My improved turret-lathe is particularly adapted for carrying adjustable and combination tools, and for-being readily and quickly equipped with sets of fixtures for producing with economy duplicate parts in relatively small numbers.

Having thus described my invention, I claim- 1. In a lathe, the combination with a workcarrying spindle, of a turret-slide arranged to move longitudinally of the spindle-axis and having a turret-carrying column at one side of said axis, a turret mounted on said column and having means for locking the same in successive positions, and having therein a bore in alignment (when the turret is in one position) with the spindle-axis, and having on the outer side thereof aslide-way which (when said bore is in alignment as aforesaid) stands transversely of said axis, and a tool-slide on said way, substantially as described.

2. In a lathe, the combination with the workcarrying spindle, of a turret-slide constructed for movement longitudinally of the spindleaxis, a turret revolubly supported upon the turret-slide with its axis at one side of the axis of the spindle and permanently fixed against transverse movement with relation to said spindle-axis and having one or more slide-ways at one or more sides thereof, one or more tool-carrying slides adjustable upon said way'or ways, and means for looking the turret in successive positions with a slide-way crosswise of the spindle-axis, substantially as described and for the purpose set forth.

3. In alathe,the combination with the workcarrying spindle and the frame of the machine, of a turret-slideconstructed for longitudinal movement with relation to said spindle, feedmechanism therefor, a revoluble turret carried by said slide with its axis at one side of the axis of the spindle, and having a series of slide-ways, one at each side thereof and adapted for being brought successively into a position transversely of the longitudinal axis of the spindle and having one or more bores adapted for being broughtinto alignmentwith the spindle axis, means for locking the turret in its successive positions, and tool-carrying slides adjustably carried upon said ways, and means for moving said carrier-slide toward and from the axial line of the spindle, substantially as described and for the purpose set forth.

4. In a lathe, the combination with the workcarrying spindle, of a turret pivotally-supported upon a turret slide with its axis or bearing at one side the axis of the spindle and having a series of slide-ways, one at each side thereof adapted for being brought successively into a position crosswise of the axis of the spindle and having a series of toolholding bores or sockets intersecting each other at right angles as shown and located at each side the axis of the turret and adapted for being brought successively into alignment with the axis of the spindle, tool-carriers supported upon the slide-ways of the turret, means for locking the turret in its successive positions, and means for longitudinally moving the turret-carrying slide to and from the spindle, substantially as described and for the purpose set forth.

5. In a lathe, the combination with the framework, the work-carrying spindle and the turret-carrying slide, of a turret revolubly supported upon the turret-slide and set with its axis or bearing at one side the axis of the spindle and having a multiplicity of tangential slide-ways on successive sides of the turret,respectively, and having tangential bores or sockets in position for being brought successively into axial alignment with the work-holding spindle, and means for locking said turret in successive positions with one of said slide-ways in a position crosswise of said spindle axis and one of said tangential bores in alignment with said spindle axis, all substantially as and for the purpose described.

6. In a lathe, the combination with the framework, the work-carrying spindle and the turret-carrying slide, of a turret revolubly supported upon the turret-slide, and set with its axis'or bearing at one side the axis of the spindle and having a multiplicity of tangential slide-ways upon successive sides thereof, respectively, and having a multiplicity of tangential bores or sockets, one at each side of, and remote from the turret bearing, and means for locking the turretin successive positions to bring the slide-ways,successively, into a position crosswise of the spindle axis and the tangential bores or sockets, successively, into axial align ment with the workcarrying spindle, tool-carriers removably and adjustably supported upon the slide-ways of the turret, means for adjusting said carriers, and feed and driving-mechanism for the turret-slide and spindle, respectively, substantially as described.

7. In a lathe, the combination with the framework, the work-carrying spindle and the turret-supporting slide, of a horizontallyrevoluble polygonally-shaped turret pivotally supported by a turret bearing upon the turret-slide at one side the axis of the spindle and having a multiplicity of horizontal slide-ways, one at each side thereof, andhaving a multiplicity of horizontal bores or sockets, each of which is located outside of the periphery of the turret-bearing, and each of which is longitudinally parallel with the slideway adjacent thereto, means for locking the turret in successive positions with one or the other of said slide-ways in position crosswise of the spindle axis, and one or the other of said bores in axial alignment with the spindle, traverse tools adjustably and removably supported upon the slide-Ways, and tools removably supported in the bores of the turret, substantially as and for the purpose described.

8. In a lathe, the combination with the framework, of a work-carrying spindle located at one side of a line drawn longitudinally through the center of the frame, aturret-supporting slide fitted to and sliding upon ways at either side of the frame of the machine, a turret revolubly supported upon the turretslide centrally with relation to the Width of the bed of the machine and with its axis or bearing at one side of the axial line of the spindle and having a multiplicity of slideways on successive sides of the turret, tangential with relation to a circle concentric to the axis of the turret, and having a multiplicity of tangential bores or sockets therein located outside of the periphery of the turret-bearing and equi-distant with relation to the axis thereof, means for shifting and looking the turret in successive positions Whereby the slide-ways are brought successively to a position crosswise of the axis of the spindle and whereby the recesses or sockets are brought successively into axial alignment with said spindle, substantially as described, tool-carrying slides removably and adjustably supported upon the slide-ways of the turret, and an adjusting device for each toolslide consisting of an arm removably secured to one side of the turret and having a feedscrew in engagement with the tool-slide, substantially as shown and for the purpose described.

9. In a lathe, the combination with a turret-slide, of a turret revolubly supported thereon havinga series of angularly-disposed side-faces, each of which is constructed to form a slide-way for atool-carrying slide and having a series of recesses or bores extending therethrough in lines parallel to its sidefaces substantially as set forth, a tool-carrying slide fitted to one of the slide-ways of the turret, a slide-carrier arm having a stem removably secured in the bore of the turret at the side adjacent to the slide-way upon which the slide is mounted,and an adjusting-screw extended through the arm and engaging the tool-carrier for moving the said slide longitudinally of its slide-way, which slide and slide-carrier are so constructed as to be applied to and removed from the turret in an assembled condition, substantially as set forth.

10. In a lathe, the combination with the work-carrying spindle, and with the turretslide adapted for longitudinal movement toward and from the spindle, of a turret revolnbly supported upon said slide and having a series of angularly disposed side faces constructed to form slide-ways for tool-carriers and having a series of recesses or bores extending therethrough in lines parallel to the side faces of the turret, and tool-carriers and tools removably and interchangeably secured to the turret, substantially as shown and described.

11. In a lathe, the combination with the work-carrying spindle and turret slide, of a turret revolubly supported upon the turretslide with its axis or bearing at one side the axial line of the spindle and having a multiplicity of tangential slide-ways having sockets or recesses formed transversely there through at a distance each. side of the turret bearing substantially equal to the distance between said turret-bearin g and the axial line of the spindle, substantially as described and for the purpose set forth.

12. In a lathe, the combination with the framework, the work-carrying spindle and the turret and turret-slide, of feeding-mechanism comprising a rack longitudinally fixed to the framework, a shaft journaled transversely in the sidewalls of the turret-slide and having a bevel-gear thereon, intermediate to its ends, and a gear and clutch at its extreme end, an obliquely disposed shaft having a bevel gear at one end in mesh with the bevel gear of the transverse shaft and havlng a worm at the opposite end in engagement with the fixed rack, a splined shaft extending longitudinally of the frame and having a driving pulley at one end belted to a pulley of the spindle, a worm movably supported upon said shaft intermediate to its ends, feedgearing interposed between and in engage ment with the said worm and the clutchwheel of the transverse shaft, and means for operating the transverse shaft independently, substantially as and for the purpose set forth.

13. In a lathe, the combination with the Work-carrying spindle, of a revoluble turret permanently fixed against movement transversely of the spindle-axis, but capable of longitudinal movement with relation thereto and with its axis at one side of the axis of said spindle, one or more tool-carrying slides adjustably mounted upon slide-ways at one or more sides of the turret and adapted for adjustably carryingtools, means for moving said tool-carrying slides transversely of the axis of the turret, tools removably carried by said slides, and means for locking the turret in its successive positions with a slide-way crosswise of the spindle-axis, substantially as described.

FRANCIS I-l RICHARDS.

\Vitnesses:

J. L. EDWARDS, J r., FRED J. DOLE. 

